1.6M views · 4.7K reactions | Koko the gorilla, who is said to have been able to communicate by using more than 1,000 hand signs, has died in California at the age of 46. Here she is on BBC News in 1985, with her kitten friend. | BBC Archive | Facebook

8M views · 8.3K reactions | This is the amazing moment Koko the gorilla got to play with some kittens on her birthday  | UNILAD | Facebook

704K views · 10K reactions | Koko, a gorilla said to have mastered American Sign Language, died in the US state of California at the age of 46 on June 19, 2018. Born at the San Francisco Zoo in 1971, Koko was said to have an IQ of between 75 and 95. The average IQ for humans is 100. | CGTN | Facebook